The DMR-MARC Worldwide Network

Our network is an all-digital
group of over 500 DMR-MARC repeaters in 75 countries with 62020 registered users. There are 4106 registered DMR repeaters world-wide in our database.
we are all amateur radio
operators many of whom are Motorola Solutions employees, Motorola
Service Station employees, dealers, system installers and Motorola equipment aficionados.

Please consider a donation to support the registration system and talk group distribution servers by clicking on the Donate button to the right. Even small amounts help!

Repeaters on our network are connected all the time. TRBO radios have great voice quality, great coverage,
and extended battery life all in LESS THAN 1/3 the channel bandwidth of a traditional analog FM
repeater with TWICE as many voice channels! Our mission is to offer you a reliable and scalable choice in connectivity:
local, regional, national and international. Isn't it time you upgraded to digital radio's cutting edge?

TG16 Worldwide Italian

TG16 Worldwide Italian is now available on from our DMR-MARC core servers.

DMR-MARC and DMRPlus Partnership Update

Dear DMR-MARC users,

As a follow-up to our announcement in August 2016 regarding our partnership with the DMRPlus network, we have some more exciting news to share with you regarding our collaboration with the DMRPlus team.
Firstly, our testing of the new DMRPlus interconnection talkgroups, which include DMR+ USA (TG133), DMR+ UK (TG143) and DMR+ South Pacific (TG153) has been very successful and we have decided to roll these
talkgroups out to all repeaters connected to our network.
We have also added DMR+ Quebec - French (TG131), and DMR+ Latin America - Spanish (TG134).
This will allow any device connected to the DMRPlus network, including commercial Motorola or Hytera repeaters, homebrew MMDVM repeaters or base stations, the upcoming DV4mobile and DV4mini users worldwide to access users on either the DMRPlus or DMR-MARC networks.
The rollout has already started and will be completed over the next few weeks.

Secondly, we have decided to allow all of our US regional talkgroups (TG3169, TG317x), and Canadian provincial talkgroups (TG302x) to be interconnected with the DMRPlus network as well. By combining the stable and robust nature of DMR-MARC network with the flexibility and experimental nature of the DMRPlus network, we hope to create a combined global DMR network that suits the needs of all ham DMR users.

With regard to the traditional DMR-MARC talkgroups, we have heard numerous concerns expressed by our users around the potential impact of experimental devices on these talkgroups, so accordingly these talkgroups will remain exclusive to the DMR-MARC network for the time being. These talkgroups include:

We believe that by providing a two tier approach to talkgroups with some designated as robust and reliable, while others open to experimentation and feature development, we can provide our users with the best possible DMR experience.

In addition, we would like to thank all of our loyal users for their generous contributions to our network over the last seven years. Many of you have invested time, hardware, and financial resources to our network, which has helped us to build the world's largest DMR network consisting of over 500 repeaters in 60 countries that is used by over 10,000 hams every day. Most importantly, your efforts have helped to change the face of ham radio digital communications forever and we hope the hobby is all the better for it.

Again, we appreciate all of your support and look forward to making DMR great for the benefit of the entire ham radio community.

The DMR-MARC Administrative Team. .

North American Talkgroup has Returned to Full-Time Usage, not Just a Calling Channel

DMR-MARC Network Users,

Effectively immediately, the North America talkgroup (TG3) will return to its original purpose as a wide-area talkgroup available to all North American hams for general QSO
at any time. We believe that the North America talkgroup is more effective as a meeting place for all hams, rather than only as a calling channel. Accordingly, we encourage
all hams to use this talkgroup for general QSOs spanning across multiple North American repeaters as a way to bridge the distance between us. In addition, we kindly ask that
hams respect the fact that this talkgroup is widely distributed and that they keep conversations to a reasonable length and take regular pauses to accommodate others that might
want to join the QSO. Remember, User Accessible English 1 (TG113) and User Accessible English 2 (TG123) are available on many systems as talkgroups to continue your conversation
if you feel that it is going to be lengthy in nature.

Hope to hear you all on North America soon! Best regards & 73’s!

The DMR-MARC Administrative Team

New Repeaters on the network

Callsign

Location

Frequency

Color Code

Offset

Country

VK3RPS

MT COTTRELL , Victoria

439.72500

1

-5.000

ka3lao

Woodbine, Maryland

442.46250

1

+5.000

KD9IPR

Parkfalls, Wisconsin

444.75000

2

+5.000

VA1DIG

Truro, Nova Scotia

442.65000

1

+5.000

N1ITR

Litchfield, Maine

146.70000

12

-0.600

WA5IHL

Albquerque, New Mexico

442.25000

1

+5.000

N3YMS

Dover, Delaware

146.79000

1

-0.600

KB1CFL

Concord, New Hampshire

145.42000

7

-0.600

K2ATY

Mt. Beacon, New York

441.01875

10

+5.000

W9EMP

Hales Corners, Wisconsin

430.95000

10

7.6

New Users on the network

Radio ID

Callsign

Name

Location

Country

2220623

IZ0WFF

CLAUDIO

Terracina, Lazio

2224296

IU4HNR

Simone

Castel San Pietro Te, Emilia-Romagna

2343977

2E0MJJ

John

Stoke on Trent, England

2343976

G4OYN

Alan

Kettering, England

2343975

M1EAR

Richard

Worcester Park, England

2343974

G3PUV

Francis

Wolverhampton, England

2045175

PD3PVH

Petrus

Waalwijk, Noord-Brabant

2048192

PD2WDB

Wouter

Sneek, Frysland

2045174

PA1PAT

Patrick

Boxmeer, Noord-Brabant

2144289

EA4BLG

Jose Luis

San Fernando de Hena, excluding Albacete

Featured Stories

Help DMR-MARC maintain the Infrastructure that you enjoy, please donate today to help us keep the Servers and C-Bridges running
as well as purchasing new infrastructure to help expand the network you love.

The Weekly Tech Net has moved back to North America TG3 at 02:00 UTC Thursday (Wednesday night in the Americas - 9pmET, 8CT, 6PT)

DMR-MARC needs your help! We're looking for additional curators for our
Facebook site to help keep it current with
good quality content related to the growth of DMR within amateur radio, plus the latest DMR-MARC news. Good writing skills and
experience with blogging would be a definite asset. If interested, please message us via
Facebook with your application now! -
DON, VA3XFT

BEWARE! CPS 8.5 requires a 25 kHz entitlement key to program 25 kHz analog channels. The entitlement key is free
with a paid CPS subscription but we see no need to update subscriber firmware newer than R01.09.10 using CPS 8.0

Network Update

FIRMWARE MATRIX- We HIGHLY recommend ALL DMR-MARC trustees and bridge partners to ONLY use the below firmware. This helps minimize
system incompatibilities.

Repeaters

ONLY R02.40.20

XPR4550,DM3601,XPR6550,DP3601Mobiles and Portables

R01.09.10* (or newer)

XPR5550,DM4601,XPR7550,DP4601,SL7550Mobiles and Portables

R02.30.01 (or newer)

CP200d, CM300d, XPR2500Mobiles and Portables

R01.00.00 (or newer)

C-Bridge

ONLY 8743

IMPORTANT!! Repeater Firmware R02.30.20 has been released. Please update your repeater
immediately. NEVER BLINDLY UPGRADE TO THE LATEST VERSION OF REPEATER FIRMWARE!!! Newer firmware is not always better. Sometimes
it has serious flaws. Only follow the Firmware Matrix suggestions. You have been warned. Again.

ADVISORY! If you upgrade an XPR4550 or XPR6550 past R01.09.10, you will need a 25 kHz
entitlement key for wideband 25 kHz analog channels. Therefore, we recommend R01.09.10 and CPS version 8 for programming those
units.

The Regional talkgroups are now available to users in any region.

Regional Talk Group Status:

Talkgroup Name

Group Call

Activation

Northeast

3172

Mid Atlantic

3173

Southeast

3174

Southern Plains

3175

Southwest

3176

Mountain

3177

Midwest

3169

NETWORK ISSUES: If you notice any problems, complete the form under the Contact Us link
at the top of the page. This way your observation gets routed to the specialists.
Complaining on the air, even during the weekly net, will do you no good. Thanks for your patience and help in this matter.
If you have any additional detailed questions, contact your local repeater trustee.

Do you have a coordinated repeater pair, a repeater site identified, and high speed access? Would you like to be our newest network
affiliate? Apply to join our network today!